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Old 06-07-2004, 05:23 PM
Dale Aeppli Dale Aeppli is offline
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Re: 1997 Grand Cherokee 4.0, new oxigen sensor and still code 21

Quote:
Originally Posted by pepo
I have a 1997 Grand Cherokee Laredo 4.0
The check engine code get the "code 21 oxigen sensor"
I've replace with an universal "the ones with 4 wires, 1 black, 1 purple and 2 whites and you have to solder the original plug on it" I've replaced and the code 21 still.

What I'm doing wrong??
Thanks in advance.
HI, HOW MANY WIRES WERE ON YOUR ORGINAL OXYGEN SENSOR, IF IT HAD LESS WIRES OR MORE YOU MAYBE CUTTING OUT A CIRCUIT THAT WAS ON THE ORGINAL. DALE
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